Danny is living and reasonably well in a rest home for retired entertainers - I believe its in Blackpool but I may be wrong. My son has a friend who's grandad was a comedian and singer and is in the rest home with Danny. It caters exclusively for retired pro and semi-pro entertainers.
No Richard O'Sullivan is in the one where Charlie Drake and Alan Freeman where in. It is sad because he has been in there for quite some time from what I can gather
Well now you have sent me off looking for ROS on the internet. There was a photo of him taken in Oct 2006 - he looked older - who doesn't - and he had a stick but not the recluse I thought he had become